Itâ™s super simple to get straight in the mix, thanks to the included TRAKTOR PRO S4 software, adapted from the pioneering TRAKTOR PRO. Developed in perfect synergy with the S4â™s controller, new features have been added to the TRAKTOR PRO S4 software to fully take advantage of this all-in-one solution, while premium ready-made and instantly combinable loops have been provided by the renowned Loopmasters sample house.